609b3670c2
Add safety checking to dgpu_disable, egpu_enable, gpu_mux_mode. These checks prevent users from doing such things as: - disabling the dGPU while is muxed to drive the internal screen - enabling the eGPU which also disables the dGPU, while muxed to the internal screen - switching the MUX to dGPU while the dGPU is disabled Signed-off-by: Luke D. Jones <luke@ljones.dev> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230630053552.976579-7-luke@ljones.dev Signed-off-by: Hans de Goede <hdegoede@redhat.com>